OWS Open Bluetooth Headset Wireless Not In-ear Integrated Battery Life Up To 36H High Definition Noise Cancellation Call Directional Sound Transmission Product Parameters: Bluetooth version: V5.4 Material: ABS+PC Colour: White Operating voltage: 5V Battery capacity: 400mAh Charging interface: Type-C interface Headphone size: 2*1.34 in / 5.1*3.4 cm Charging compartment size: 5.31*1.81*1.41 in / 13.5*4.6*2.9cm Package size: 6.1*3.03*1.65 in / 15.5*7.7*4.2cm Product net weight: 0.22 lb / 100g Gross weight: 0.39 lb / 180 g Product Description: OPEN DESIGN: Unlike traditional in-ear headphones, these headphones have an open design, which is lightweight and comfortable, and will not give the user a sense of auditory occlusion, while being able to maintain a certain degree of ambient awareness, which is more suitable for prolonged wear Wireless Connection: With Bluetooth technology, there is no need for cumbersome cable connections, allowing users to move around and enjoy an unfettered music experience that is easy to use Integrated Battery Life: With excellent battery life performance, it can be used for up to 36 hours on a single charge, so users don't have to recharge frequently and listen to music or talk for a long time Environmental Noise Cancellation: Equipped with Environmental Noise Cancellation technology, it effectively reduces the noise interference from the surrounding environment, ensuring clear call quality and making calls smoother and more pleasant Multi-scene application: applicable to a variety of scenarios, whether it is outdoor sports, office study or travel and leisure, can provide a stable, good audio experience to meet the various needs of users Item list: Headset *1 Charging cable *1 Instruction manual *1